Ms. dreamingbeauty,
What my lovely GC cohorts are trying to say is you aren't going to get the answer to your question here, ESPECIALLY since your hopes are set on an NPHC organization. You have at least two and a half years to get yourself together. As I'm sure you know, the D4 sororities value scholarship and service, among other things. I suggest you start, and continue, there. Most importantly, get to know a member of the organization of your choice who lives in your community so you can direct your questions to her.
But of course, had you checked out the boards of the NPHC sororities, you'd know all that.
12dn94dst